Self-locking stainless steel base

Abstract

The utility model belongs to the technical field of stainless steel bases, and particularly relates to a self-locking stainless steel base which comprises a mounting table, the mounting table is in a circular truncated cone shape with an open top wall, a vertical rotating column is rotatably arranged at the center of the bottom wall of the mounting table, and a circular-plate-shaped rotating table is rotatably arranged at the top of the mounting table. The top end of the rotating column is fixed in the center of the bottom wall of the turntable; a mounting frame is arranged on the bottom wall of an inner cavity of the mounting table, a driving rod is rotationally arranged on the side wall of the mounting frame, a worm gear is arranged on the outer side of a rod body of the rotating column, and a worm meshed with the worm gear is arranged on a rod body of the driving rod. When the rotary table does not need to be rotated, due to the fact that the worm and the worm gear have self-locking performance, rotation of the rotary table is avoided, self-locking of the rotary table is achieved, and in order to prevent the rocker from being touched by mistake to drive the driving rod to rotate, a mistaken touch prevention device is further arranged, namely when the spring is not extruded by external force, the driving rod cannot rotate along with the sleeve no matter how the sleeve is rotated. Therefore, the rotary table is prevented from rotating by touching the rocker by mistake.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel bases, in particular to a self-locking stainless steel base. Background Art

[0002] In modern society, various devices have penetrated into every corner of our lives, whether industrial equipment, office equipment or household appliances, they are all providing convenience for us. Some devices have their bottoms installed on the base, and the design of their bases often directly affects the overall performance of the equipment.

[0003] Although some existing bases can be turned to adjust the position of the ornaments above them, they lack a self-locking device after turning, which may cause accidental rotation and affect use. For example, a family bought a sculpture as a decoration in the living room and fixed it on a base with a turning function. When it was placed for the first time, the family members made careful adjustments and finally adjusted the position of the sculpture to be just right, so that it blended perfectly with the surrounding home environment. However, not long after, the children or guests in the family accidentally touched the base, causing the position of the sculpture to change. Therefore, it is necessary to develop a self-locking stainless steel base. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A self-locking stainless steel base, comprising:

[0007] A mounting platform, the mounting platform is in the shape of a round table with an open top wall, a vertical rotating column is rotatably provided at the center of the bottom wall of the mounting platform, a circular plate-shaped turntable is rotatably provided at the top of the mounting platform, and the top end of the rotating column is fixed at the center of the bottom wall of the turntable;

[0008] A mounting frame, wherein the bottom wall of the inner cavity of the mounting platform is provided with the mounting frame, a driving rod is rotatably provided on the side wall of the mounting frame, a worm gear is provided on the outer side of the rod body of the rotating column, and a worm gear meshing with the worm gear is provided on the rod body of the driving rod;

[0009] The right end of the driving rod rotates through the outer wall of the mounting platform and is provided with a mounting slot at the right end. A transverse spring is rotatably arranged at the left end of the inner cavity of the mounting slot through a bearing seat. A clamping block is arranged at the other end of the spring. A limiting insert strip is arranged around the side wall of the clamping block. A limiting slot aligned with the limiting insert strip is arranged in a concave manner at the right end of the inner cavity side wall of the mounting slot.

[0010] A sleeve is provided at the right end of the block, the inner side of the left end of the sleeve is sleeved on the outer side of the driving rod, a fixing plate is provided at the right end of the sleeve, and a hand crank parallel to the sleeve is rotatably provided at the other end of the fixing plate.

[0011] As a preferred solution of the self-locking stainless steel base described in the utility model, wherein: an annular slide groove is concavely opened on the upper edge of the mounting platform, the rod body of the driving rod does not contact the slide groove, and universal wheels are arranged at equal intervals around the center of the bottom wall of the turntable with the rotating column as the center.

[0012] As a preferred solution of a self-locking stainless steel base described in the utility model, wherein: a gap is set between the lower surface of the turntable and the upper edge of the mounting table, the universal wheel is located directly above the slide groove, and the wheel surface of the universal wheel rolls on the bottom of the slide groove.

[0013] As a preferred solution of the self-locking stainless steel base described in the utility model, the lead angle of the worm is smaller than the equivalent friction angle between the meshing teeth of the worm wheel, the mechanism has self-locking properties and can achieve reverse self-locking, that is, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm, and its reverse self-locking property can play a safety protection role.

[0014] As a preferred solution of a self-locking stainless steel base described in the utility model, when the spring is not squeezed by external force, the elastic force of the spring itself pushes the card block so that the card block is located outside the installation groove, and the limiting insert and the limiting slot are separated.

[0015] As a preferred solution of a self-locking stainless steel base described in the utility model, when the clamping block is squeezed by the sleeve, the spring is compressed, and the clamping block is located in the inner cavity of the installation groove, and the limiting insert is inserted into the groove of the limiting slot.

[0016] As a preferred solution of the self-locking stainless steel base described in the utility model, the outer side wall of the sleeve is provided with a bearing sleeve, and the outer side of the bearing sleeve is provided with an anti-slip sleeve.

[0017] The beneficial effects of the utility model are:

[0018] 1. When the turntable needs to turn to adjust the position of the object above it, the user holds the anti-slip sleeve with one hand and applies force in the direction of the drive rod. The spring is squeezed through the sleeve so that the limit strip fits into the groove of the limit slot. The other hand can hold the hand crank to drive the sleeve to rotate. At this time, the drive rod can be driven to rotate, and then the rotating column drives the turntable to rotate through the worm and worm gear to achieve steering.

[0019] 2. When there is no need to rotate the turntable, firstly, since the worm and the worm wheel are self-locking, reverse self-locking can be achieved, that is, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm. The reverse self-locking property prevents the turntable from rotating on its own, thereby achieving self-locking of the turntable. Secondly, in order to avoid accidentally touching the hand crank to drive the drive rod to rotate, an anti-accidental touch device is also provided, that is, when the spring is not squeezed by external force, the spring's own elastic force pushes the card block so that the card block is located outside the mounting groove. At this time, the limit strip and the limit slot are separated, and no matter how the sleeve is rotated, the drive rod will not rotate accordingly, thereby avoiding accidentally touching the hand crank to cause the turntable to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is an exploded view of the turntable and the mounting platform of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the turntable of the utility model when viewed from above;

[0024] Figure 4 It is a schematic diagram of the structure of the internal components of the installation groove and sleeve cross section of the utility model;

[0025] Figure 5 It is an exploded view of the driving rod, the clamping block and the sleeve of the utility model;

[0026] Figure 6 For this utility model Figure 4 Schematic diagram of the structure after the middle spring is compressed.

[0027] In the figure: mounting platform 100, rotating column 110, turntable 120, slide groove 130, universal wheel 140, mounting frame 200, driving rod 210, worm 220, worm wheel 230, mounting groove 300, bearing seat 310, spring 320, block 330, limiting insert strip 340, limiting slot 350, sleeve 400, fixing plate 410, hand crank 420, bearing sleeve 430, anti-slip sleeve 440. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] See also Figure 1-Figure 6 , shows a schematic diagram of the structure of a self-locking stainless steel base embodiment of the utility model, please refer to Figure 1-Figure 6 , a self-locking stainless steel base is introduced in detail.

[0033] A self-locking stainless steel base includes a mounting platform 100, which is in the shape of a truncated cone with an open top wall. A vertical rotating column 110 is rotatably provided at the center of the bottom wall of the mounting platform 100, and a circular plate-shaped turntable 120 is rotatably provided at the top of the mounting platform 100. The top end of the rotating column 110 is fixed at the center of the bottom wall of the turntable 120. The mounting platform 100 and the turntable 120 are both made of stainless steel and have good corrosion resistance and strength.

[0034] The bottom wall of the inner cavity of the mounting platform 100 is provided with a mounting frame 200, the side wall of the mounting frame 200 is rotatably provided with a driving rod 210, the outer side of the rod body of the rotating column 110 is provided with a worm gear 230, and the rod body of the driving rod 210 is provided with a worm 220 meshing with the worm gear 230;

[0035] The right end of the driving rod 210 rotates through the outer wall of the mounting platform 100 and is provided with a mounting groove 300 at the right end. A transverse spring 320 is rotatably provided at the left end of the inner cavity of the mounting groove 300 through the bearing seat 310. A clamping block 330 is provided at the other end of the spring 320. A limiting insert 340 is provided around and protrudes on the side wall of the clamping block 330. A limiting slot 350 aligned with the limiting insert 340 is provided in a concave manner at the right end of the inner cavity side wall of the mounting groove 300.

[0036] A sleeve 400 is provided at the right end of the block 330, and the inner side of the left end of the sleeve 400 is sleeved on the outer side of the driving rod 210. A fixing plate 410 is provided at the right end of the sleeve 400, and a hand crank 420 parallel to the sleeve 400 is rotatably provided at the other end of the fixing plate 410.

[0037] Furthermore, an annular slide groove 130 is formed in an inwardly concave shape on the upper edge of the mounting platform 100, and the rod body of the driving rod 210 does not contact the slide groove 130. Universal wheels 140 are arranged at equal intervals around the bottom wall of the turntable 120 with the rotating column 110 as the center. A gap is set between the lower surface of the turntable 120 and the upper edge of the mounting platform 100. The universal wheel 140 is located directly above the slide groove 130, and the wheel surface of the universal wheel 140 rolls on the bottom of the groove of the slide groove 130. The turntable 120 is supported by the universal wheel 140, and when the turntable 120 rotates, the wheel surface of the universal wheel 140 rolls on the bottom of the groove of the slide groove 130, and the friction force is small.

[0038] Furthermore, the lead angle of the worm 220 is smaller than the equivalent friction angle between the meshing teeth of the worm wheel 230, so that the worm 220 and the worm wheel 230 have self-locking properties and can achieve reverse self-locking, that is, only the worm 220 can drive the worm wheel 230, but the worm wheel 230 cannot drive the worm 220. Its reverse self-locking property prevents the turntable 120 from rotating on its own, thereby achieving self-locking of the turntable 120.

[0039] Furthermore, when the spring 320 is not squeezed by external force, the elastic force of the spring 320 itself pushes the block 330, so that the block 330 is located outside the installation groove 300, and the limiting strip 340 and the limiting slot 350 are separated. At this time, no matter how the sleeve 400 is rotated, the driving rod 210 will not rotate therewith, thereby avoiding accidentally touching the hand rocker 420 to cause the turntable 120 to rotate.

[0040] Furthermore, when the block 330 is squeezed by the sleeve 400, the spring 320 is compressed, and the block 330 is located in the inner cavity of the installation groove 300, and the limiting strip 340 is inserted into the groove of the limiting slot 350. After the user drives the sleeve 400 with one hand to squeeze the spring 320, the limiting strip 340 is inserted into the groove of the limiting slot 350. At this time, after rotating the sleeve 400 again, it will drive the drive rod 210 to rotate.

[0041] Furthermore, a bearing sleeve 430 is provided on the outer wall of the sleeve 400, and an anti-slip sleeve 440 is provided on the outer side of the bearing sleeve 430. The bearing sleeve 430 is divided into an inner ring and an outer ring, and the two are rotatably connected, and the inner side of the inner ring is fixed to the outer side of the sleeve 400, and the outer side of the outer ring is provided with an anti-slip sleeve 440. After the user holds the anti-slip sleeve 440 with one hand and squeezes the spring 320 through the sleeve 400, the other hand can hold the hand crank 420 to drive the sleeve 400 to rotate.

[0042] During specific use, when the turntable 120 needs to be turned to adjust the orientation of the object above it, the user holds the anti-slip sleeve 440 with one hand, applies force in the direction of the drive rod 210, and squeezes the spring 320 through the sleeve 400, so that the limiting insert 340 fits into the groove of the limiting slot 350. The other hand can hold the hand crank 420 to drive the sleeve 400 to rotate. At this time, the drive rod 210 can be driven to rotate, and then the rotating column 110 drives the turntable 120 to rotate through the worm 220 and the worm wheel 230 to achieve steering.

[0043] When there is no need to rotate the turntable 120, firstly, since the worm 220 and the worm wheel 230 are self-locking, reverse self-locking can be achieved, that is, only the worm 220 can drive the worm wheel 230, and the worm wheel 230 cannot drive the worm 220. Its reverse self-locking property prevents the turntable 120 from rotating, thereby realizing the self-locking of the turntable 120. Secondly, in order to avoid accidentally touching the hand rocker 420 to drive the drive rod 210 to rotate, an anti-accidental touch device is also provided, that is, when the spring 320 is not squeezed by external force, the elastic force of the spring 320 itself pushes the block 330 so that the block 330 is located outside the mounting groove 300. At this time, the limiting strip 340 and the limiting slot 350 are separated, and no matter how the sleeve 400 is rotated, the drive rod 210 will not rotate accordingly, thereby avoiding accidentally touching the hand rocker 420 to cause the turntable 120 to rotate.

[0044] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-locking stainless steel base, characterized in that: include: A mounting platform (100), the mounting platform (100) being in the shape of a truncated cone with an open top wall, a vertical rotating column (110) being rotatably disposed at the center of the bottom wall of the mounting platform (100), a circular plate-shaped turntable (120) being rotatably disposed at the top of the mounting platform (100), and a top end of the rotating column (110) being fixed at the center of the bottom wall of the turntable (120); A mounting frame (200), wherein the bottom wall of the inner cavity of the mounting platform (100) is provided with the mounting frame (200), a driving rod (210) is rotatably provided on the side wall of the mounting frame (200), a worm wheel (230) is provided on the outside of the rod body of the rotating column (110), and a worm (220) meshing with the worm wheel (230) is provided on the rod body of the driving rod (210); The right end of the driving rod (210) rotates through the outer wall of the mounting platform (100) and is provided with a mounting groove (300) at the right end; a transverse spring (320) is rotatably provided at the left end of the inner cavity of the mounting groove (300) through the bearing seat (310); a clamping block (330) is provided at the other end of the spring (320); a limiting insert strip (340) is provided around and protrudes from the side wall of the clamping block (330); and a limiting slot (350) aligned with the limiting insert strip (340) is provided in a concave manner at the right end of the inner cavity side wall of the mounting groove (300); A sleeve (400), the right end of the clamping block (330) is provided with a sleeve (400), the inner side of the left end of the sleeve (400) is sleeved on the outer side of the driving rod (210), the right end of the sleeve (400) is provided with a fixing plate (410), and the other end of the fixing plate (410) is rotatably provided with a hand crank (420) parallel to the sleeve (400).

2. A self-locking stainless steel base according to claim 1, characterized in that: An annular slide groove (130) is formed in an inwardly concave shape on the upper edge of the mounting platform (100), the rod body of the driving rod (210) does not contact the slide groove (130), and universal wheels (140) are arranged at equal intervals around the center of the bottom wall of the rotating platform (120) with the rotating column (110) as the center.

3. A self-locking stainless steel base according to claim 2, characterized in that: A gap is provided between the lower surface of the turntable (120) and the upper edge of the mounting platform (100); the universal wheel (140) is located directly above the slide groove (130), and the wheel surface of the universal wheel (140) rolls on the bottom of the slide groove (130).

4. The self-locking stainless steel base according to claim 1, characterized in that: The lead angle of the worm (220) is smaller than the equivalent friction angle between meshing teeth of the worm wheel (230), and the mechanism has a self-locking property and can achieve reverse self-locking, that is, only the worm (220) can drive the worm wheel (230), but the worm wheel (230) cannot drive the worm (220), and its reverse self-locking property can play a role in safety protection.

5. The self-locking stainless steel base according to claim 1, characterized in that: When the spring (320) is not squeezed by external force, the elastic force of the spring (320) pushes the block (330) so that the block (330) is located outside the installation groove (300), and the limiting insertion strip (340) and the limiting slot (350) are separated.

6. The self-locking stainless steel base according to claim 1, characterized in that: When the clamping block (330) is squeezed by the sleeve (400), the spring (320) is compressed, and the clamping block (330) is located in the inner cavity of the installation groove (300), and the limiting insertion strip (340) is inserted into the groove of the limiting slot (350).

7. The self-locking stainless steel base according to claim 1, characterized in that: The outer wall of the sleeve (400) is provided with a bearing sleeve (430), and the outer sleeve of the bearing sleeve (430) is provided with an anti-slip sleeve (440).

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